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. 2020 Sep 7;20(18):5101. doi: 10.3390/s20185101

Figure 6.

Figure 6

Minimization potential of the prototype Printed circuit board (PCB), where firstly, a plenty of free space exists, especially on the transmitter board; secondly, there is significant redundancy in terms of modules on both transmitter and receiver boards, for example, the micro-controller module and the power module.